To evaluate the risk of cancer from multiple chemicals detected in groundwater, a cancer health risk index must be calculated using the procedure specified in this part.
To evaluate the risk of cancer from multiple chemicals detected in groundwater, a cancer index must be calculated using the following equation:
|Cancer health risk index=C1/cHRL1+C2/cHRL2+...+CN/cHRLN|
CN represents the concentration expressed as µg/L of the first through Nth chemical. In the case of a chemical that is detected but cannot be quantified, CN is determined by acceptable statistical procedures.
MS s 103H.201
May 11, 2009
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